Got a high score of 430, not sure I'll be able to do better.
The weapon switching was pretty unintiutive. I didn't realize I even had other weapons at first and just stuck with the basic.
One-hit kills make it WAY too difficult, especially when contacting an enemy hits you, and they can also shoot sideways as you try to dodge.
I get that you're running down the side of the building, I think there was a missed opportunity to have your character run around the edges instead of always on the same face of the building.
I like the character design and the theme interpretation was pretty good.